Premium Suprel? Isolation Gowns Are Breathable and Protect Against Fluids. Medline's Premium Isolation Gowns are made from DuPont Suprel? material which is a heavy, yet breathable material that protects under stringent conditions. The gown is generously sized with long waist ties and hook and loop closure for a secure fit. Gowns feature knit cuffs and strong sealed seams that are designed to withstand tough conditions, offering 360Â° total protection. Meets AAMI PB70 Level 3 testing. The gown is blue and has a purple color coded neck binding signifying gown meets AAMI level 3.